Power takeoff assembly and working method

According to the power takeoff assembly and the working method, a shifting fork on a shifting fork shaft drives a meshing sleeve, the meshing sleeve is meshed with an input gear to drive a power transmission device of an output gear shaft to rotate, and the power takeoff function is achieved; and meanwhile, the main shaft drives the hollow shaft to rotate through the lengthened middle shaft, the spring assembly is matched with the shifting fork shaft, friction force is generated between the compressed spring assembly and the inner wall of the meshing sleeve, and the input gear is matched with the gear of the meshing sleeve to jointly achieve gear locking. The device has the advantages of being compact in structure, small in occupied space, low in failure rate, capable of achieving various interfaces and the like. 本发明公开了一种取力器总成及工作方法，包括：通过将拨叉轴上拨叉带动啮合套，啮合套与输入齿轮啮合进而带动输出齿轮轴的动力传输装置进行转动，实现取力功能；同时主轴通过加长中间轴带动空心轴进行转动，弹簧总成配合拨叉轴，压缩后的弹簧总成与啮合套内壁产生的摩擦力、输入齿轮与啮合套的齿轮配合共同实现锁挡。本发明具有结构紧凑、占用空间小、故障率低、可以实现多种接口等优势。